Improvement in vapor-burners



UNITED STATES PATENT OFFICE.

MICHAEL B. DYOTT, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN VAPORBUR NERS.

To all whom it may concern:

Be it known that I, MICHAEL B. DYoTT, of the city of Philadelphia, in the State of Pennsylvania, have invented certain Improvements in Radiating Vapor-Burners f'or Lamps, of' which the following is a specifica-tion:

The rst part of my invention relates to the separation of radiating jets of mingled air and hydrocarbon vapor by surrounding them respectively with projecting guards for the purpose of aifording thereby extended heating surfaces around the jets, protecting the ignited jets from accidental currents of air, and producing greater expansion, brilliancy, and uniformity in the flames radiating therefrom. The second part of my invention relates to the introduction of a slender stream of fresh external air into contact with each of' the jets within the surrounding guards, by means of a small vertical hole made through the under side of' the said guard; the object of this part of my invention being to further whiten the flame by intensifying the combustion of the said vapor jet. The third part of my invention relates to the attachment, to the under side of' the burner-head, of a hollouT cylinder concentric with a perforated tube, which mingles and conducts the air and vapor together to the said head so as to form an annular guard, open at its lower end, around the said perforated tube; the object of this part of my invention being to protect the said perforated tube from all lateral currents of cold air and to better protect it from any danger of having the perforations accidentally obstructed. The fourth part of my invention relates to the extension of the vapor and air-mingling and conducting-tube upward nearly to the underside of the top plate ofthe burner-head, and slotting or perforating that part of the same which thus projects within the head, for the purpose of giving the same more heating surface and also causing a more uniform flow of the air and vapor through the said head.

Figure l is a vertical central section of the burner of a hydrocarbon lamp embodying my invention. Fig. 2 is a plan view of the under side of the top plate of the burner-head without its bottom plate. Fig. 3 is a plan view of the said bottom plate. Fig. 4 is a plan view of' the slotted upper end ofthe air and vapor-mingling and conducting-tube of the burner.

The head A of the burner consists of a short cylinder closed at its upper end and having a central opening surrounded by a downward-projecting flange, a', in its lower end, whereby it is screwed fast over the open upper end of the perforated tube B, which mingles and conducts the vapor and air into the said head. Around the upper end of the cylindrical head A there is a flange, a, which forms the cover of a series of apartments, 3 3, produced by radial partitions 4 4..

The open under sides of the said apartments 3 are closed by a disk, 5, (see Fig. 3,) which lits around the flange a and is held in close contact with the radial partitions by means of the hollow cylinder C, which is screwed rmly up against the disk, when the same are so applied around the ilange a. (See Fig. l.) The lower end of the tube B is screwed fast to the upper end of the boss D which contains the valve-stem d1 and its seat, and communicates with the wick-tube d2 that leads to the fountain or reservoir-not shown. Just above the junction of the tube B with the boss D there is a surroimding series of small airholes, b, in the former, and through these holes the air enters the tube and becomes mingled with the vaporized fluid rising from the valve below. Around the lower end of the tube B a traversing flange, F, is iitted so that it can be moved toward or from the open mouth of the cylinder (l,for the purpose of regulating the flow of air into the tube to suit the requirements of the particular hydrocarbon fluid used in the lamp. The upper end of' the tube B has vertical slots If'b cut in two vertical planes which are at right angles to each other. (See Figs. 1 and 4.) A jethole, (i, is made through the middle of the back part of' each of the apartments 3 into the interior of the head A, and also an air-hole, 7, leading into each of the compartments 3- through the bottom of the latter. (See Figs. l and In starting the burner the valve is opened and the little dishE filled with some naphtha or its equivalent, and ignited, whereby the boss D, tube B, and head A become heated sufficiently to vaporize the hydrocarbon liquid running through the valve, and also to warm the air which enters the series of' holes b', the said vapor and air together passing into the heated headA and escaping through the jetholes 6 in radial streams, which, becoming ignited and supplied with fresh streams of' air from the holes 7, the required brilliant radial jets of llame are produced, the said jets of y gating the outer edge of the flange a", so as to vapor-jet holes 6 6, When the said apartments flame keeping the headA and tube B sufficiently heated to keep up the yaporization of the hydrocarbon iiuid rising` through the valve after the naphtha in the dish E has become consumed.

l do not intend to coniine the construction of the head A to the mode described, as it is obvious that the same may be constructed by corrui'orm the apartments 3, or cast solid and the apartments or cavities drilled out, or casting them With the head.

I claim as my inventionl. The apartments 3 3, in combination With the are each formed so as to be open only at the perimeter of the burner-head and the said vapor- 

